Intelligence index
Outperforms 90% of compared models
GPT-5.6 Terra
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic tasks where capability and cost need to be balanced, offering strong performance at roughly half the cost of Sol.
- Input / output price
- $2/$12per 1M tokens
- Context
- 1.1M
- Released
- 2026-07-09
Pricing
Artificial Analysis
Explore rankingsCoding index
Outperforms 96% of compared models
Agentic index
Outperforms 84% of compared models
Related Models
GPT-6 Astra
openaiGPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon agentic tasks that involve computer and browser use.
- Context
- 1.1M
- Max output
- 128K
- Released
- 2026-09-04
- Input
- $10/M
- Output
- $50/M
- Cache read
- $1/M
GPT-6.1 Sol
openaiGPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. It is suited for agentic coding, computer use, document-heavy professional work, and multi-step business workflow automation, and approaches Astra-level results on these tasks at a much lower cost. Compared with GPT-6 Sol, it makes fewer factual errors and is more reliable at respecting explicit restrictions and user intent during agentic tasks.
- Context
- 1.1M
- Max output
- 128K
- Released
- 2026-09-29
- Input
- $2/M
- Output
- $10/M
- Cache read
- $0.1/M
GPT-6.1 Terra
openaiGPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. It is suited for everyday agentic, coding, and writing work, is particularly strong at understanding screenshots and on-screen content, and is efficient enough for high-volume workloads.
- Context
- 1.1M
- Max output
- 128K
- Released
- 2026-10-26
- Input
- $1/M
- Output
- $5/M
- Cache read
- $0.05/M